Yesterday I downloaded Avant Browser 2015 build 10 Ultimate from the Download page on your website but About Avant Browser says I have version 9 yet I have Firefox:36.0.0.5540 and Chrome:40.0.2214.115 as per your notes under Browser Release Announcements for version 10. Have I version 10 installed and the About screen shows 9 instead of 10. When I right click on avant.exe in Windows Task Manager it says I have File/Product version 12.5.0.0 created 11-Feb-2015.

I uninstalled previous version before installing the new one and I checked there were no Avant Processes running.

When I Click "Check for New Version" it say there is a new version to download. I am using mobile broadband and have a monthly data allowance, downloading Avant Browser Ultimate uses up a quarter of my daily allowance so I am reluctant to download it again.

It's possible the uninstall didn't work correctly (usually because one of the processes is still loaded). Best way to sort it out is to reboot the machine, then uninstall the current one, and run the new installer.